We purchased a used 2008 Jayco Jayflight TT, from a dealer late in the summer of 2010. Were told it appeared not to have any leaks or problems. Have used it about 10x's. Last week after we returned for a trip, noticed the rear seam seperating. Upon farther investigation, found rotton wood at the bottom of the seam. Called camper dealer, who said they could repair it for 4-5000. Had an insuance adjuter who specializes in campers/owns a camper dealership in another part of the state to look at it. Said if we could tell them it had been hit, they could pay to help repair. We don't recall hitting anything. He did tell us with an experinced carpenter it could be rpaired much cheaper. We did have water come around a light fixture in the front about a month ago after the AC unit froze up. Need advice on what and where to check for any futher leaking, should we investigate the light fixture leak?, how to repair the seperated seam on theback, and any advice on the rubber roof. The adjuster did give us much mor info about maintainig the roof than the dealer ever mentioned. Advice on reliable products to use on the roof and seams. Thanks for any advice anyone has. I can post photos if this would help.